This PDF file contains the front matter associated with SPIE Proceedings Volume 12299, including the Title Page, Copyright information, Table of Contents, and Conference Committee Page.

Due to the crisis of non-renewable fossil energy such as oil and coal in the practice of development, so in the economic construction period to control the exploitation and utilization of energy on the basis of practical development problems to strengthen the development and research efforts of The West Nongyuan. Understand nanotubes by calculation system contained in the hydrogen adsorption and storage performance, high in surface curvature of doped B atoms in the carbon material system can promote the hydrogen adsorption, alkaline earth metal Ca after the ionization of the system of electric charge, because can produce polarization and hydrogen, so also can enhance the level of hydrogen adsorption. From the point of comprehensive research results, discussed the influence factors of hydrogen storage material performance, enhance the interaction between material and hydrogen, guarantee the hydrogen adsorption at between 0.2 and 0.4 eV, not only can absorption or release of hydrogen under mild conditions, can also according to the principle of the technology design nanostructures of hydrogen storage materials have a positive impact. Therefore, based on a systematic understanding of the current research status of hydrogen energy at home and abroad, this paper uses the metal-organic framework (MOF) to analyze and determine whether it can be used to improve hydrogen storage capacity. The results show that doping metal ions and nanoclusters can be used to improve the hydrogen storage performance of the system.

The sailing direction of the wave glider and the attitude of the pontoon have an important impact on the output performance of the wave glider solar panel. It is necessary to predict the energy output of the wave glider solar panel during sea navigation to ensure the reasonable energy distribution of each sensor and control system. An energy calculation method suitable for the navigation characteristics of the wave glider is proposed. On the basis of studying the solar radiation model and the sea operation law of the wave glider, the calculation model of the output energy of the solar panel of the wave glider under the motion state is derived. Provide energy guarantee for long-term sea endurance of wave glider.

The free hanging Steel Catenary Riser (SCR) has been widely used in deep water oil and gas field development, due to its economic efficiency and ease of installation. LingShui 17-2 gas field development project is the first attempt for CNOOC to utilize Deep Draft SEMI and SCR system at 1500m water depth. Layout of two 12-inch production risers has been analyzed to evaluate the safety risk impact of risers on Living Quarters. Results show that when risers are hanging the west side pontoon of the SEMI, the resulting frequency of impairment is significantly lower for the case with risers on the west side of the platform. In numbers, the estimated annual impairment of LQ due to riser fire is 2.3E-5 and 2.6E- 7, respectively for east-mounted and west-mounted risers. Considering the two 12-inch production risers to be hung off on the east pontoon, the total annual frequency for impairment of LQ would be 3.2E-5, which is still lower than the normally acceptable criteria. Relevant empirical practices can provide reference for the layout design of SCR for other deep-water development projects in South China Sea.

At present, under the background of "dual carbon goal", China is accelerating the construction of a new power system mainly based on photovoltaic and wind power. Distributed photovoltaic will develop rapidly because it can be partially self-used, without the need for new transmission lines and independent occupation of land resources. However, the strong fluctuation of the output power of large quantity distributed photovoltaic power generation brings new challenges to the reliable and economic operation of distribution network. This paper discusses the opportunities and challenges in the development of distributed photovoltaic power generation from three aspects: the influence of national policies on the development of distributed photovoltaic power industry, the research and application status of large quantity distributed photovoltaic power grid-connected technology, and the main factors affecting the rapid development of distributed photovoltaics.

Research on the climate microenvironment of desert photovoltaic power stations will provide data support for improving the ecological benefits of photovoltaic power stations in desert areas. This study analyzes the temporal variation of the wind field in Qinghai Gonghe photovoltaic industrial park and discusses the impact of photovoltaic development on the wind field and the ecological effects based on the measured data. Our research results show that the wind direction inside and outside the photovoltaic field is relatively dispersed in spring and autumn in terms of seasonal variation. In summer, the wind direction in the photovoltaic field is particularly dispersed, while in winter, the variation of wind direction is that the outside of the photovoltaic field is simpler than the inside. The composition of the main wind direction and the frequency of sand blowing wind are the main factors that lead to the seasonal heterogeneity of the wind field.

As the focus of modern society construction and development, large-scale grid-connected photovoltaic power station is also the energy utilization technology with the most development potential in the future. The one hand, can reduce the battery energy storage and release process, effectively control the wastage of the energy economy, on the other hand can improve the quality and efficiency of power station transmission power, effective control of the space and capital consumption, further promote social and economic development for the education. At present, in the large-scale construction and promotion of grid-connected photovoltaic power stations in mountainous areas of China, centralized or cluster inverter schemes are used. Although there are technical differences between them, their fundamental purpose is to ensure the safe and stable operation of power stations. Therefore, on the basis of understanding the current construction and development status of large grid-connected photovoltaic power stations in China, this paper makes a comparative analysis of the centralized and cluster inverter schemes to clarify the application differences of the two in large grid-connected photovoltaic power stations, so as to provide basic guarantee for future urban residents.

This paper reviews the nature and composition of recovered water from oil fields at this stage. A systematic introduction to the current stage of oilfield produced water treatment methods, and an analysis of the advantages and disadvantages of their various methods to compare. The coupling process of adsorption using activated carbon fibers with electrocatalytic oxidation is briefly described for the current status of oilfield produced water treatment. It is pointed out that coupling adsorption method with electrocatalytic oxidation process is a new research direction for oilfield produced water treatment.

Based on the needs of a car model of a car company, this paper develops and designs a safe and reliable power battery system. In this paper, the structure and composition of the power battery system are introduced in detail, and the performance simulation analysis of the system is carried out, including modal analysis, inertia force analysis, mechanical shock and thermal management performance simulation analysis. Through simulation analysis, the safety and reliability of the power battery system can be verified, and the results also show the rationality and feasibility of the power battery system design, which provides a certain theoretical basis for the subsequent system structure optimization and experimental verification.

Smart energy is valued by many countries. Based on the country's energy security strategy, resource endowment, load characteristics, grid structure, economic level, scientific and technological strength, industrial base and other factors, countries have formulated smart energy development strategies tailored to their national conditions. The promotion of smart energy has become a global consensus. Germany, the UK, Japan and the US have all proposed and accelerated smart energy plans or solutions in their energy strategies. International energy companies are also continuing to transform and upgrade through the promotion of smart energy. Through macro data analysis, this paper examines the need to develop smart energy, and provides a systematic reference for the development of the smart energy industry.

Heavy non-ferrous smelting industry is one of the main fields of carbon emission reduction and carbon peak. It is urgent and important to find out the greenhouse gas (GHG) emission of heavy non-ferrous smelting industry and conduct GHG accounting in heavy non-ferrous smelting industry. However, the method of GHG emission accounting in non-ferrous smelting industry has not been updated for many years, which brings great difficulties to the further development of GHG accounting work in non-ferrous industry under the new form of "double carbon". In this paper, a typical lead smelting enterprise is taken as an example to study the carbon dioxide (CO₂) emission accounting, and the existing problems of GHG accounting in heavy non-ferrous smelting enterprises are discussed, and suggestions for further optimization are put forward.

Improving environmental efficiency is a critical way to reduce greenhouse gas such as CO2. However, there is still need for further research on the environmental efficiency of county-level cities, especially the impact of R&D investment. This paper proposes a super slacks based measure model with bad output to analyze the environmental efficiency of 280 county-level cities in China, considering the R&D impact. Next, the panel quantile regression method is adopted to study the factors which influence environmental efficiencies, including industrial structure, GDP per capita, energy consumption per capita, and government net spending. The result shows that most county-level cities in China have a relatively low level of environmental efficiency. The paper also analyzes some factors that can affect environmental efficiency. (1) Industrial structure is a positive factor for the environmental efficiency. (2) GDP per capita is positively correlated with the environmental efficiency. (3) Energy consumption per capita harms the environmental efficiency. (4) The effect of government deficit can decrease the environmental efficiency

The goal of this article is to assess the current emissions of nitrous oxide (N2O) from the Thai agricultural system and its regional distribution characteristics. The nitrous oxide emissions from crop cultivation and manure management processes in each region of the country were evaluated using the recommended methodology of the United Nations Intergovernmental Panel on Climate Change (IPCC), together with official statistics. In terms of spatial distribution, nitrous oxide emissions differed significantly among regions, with the largest emissions in the central region, followed by the northern and northeastern regions and the smallest emissions in the southern region. Given the characteristics of the agricultural and livestock industries in Thailand, it is recommended to improve field management measures through a reasonable application of nitrogen and better irrigation models. To reduce nitrous oxide emissions by appropriately adjusting the farming structure, improving the storage environment and improving manure treatment, and explore new low-carbon farming models such as combined farming and recycling to achieve nitrous oxide emission reduction and scientific control.

Since the implementation of China's dual carbon policy, the whole industry has actively carried out low-carbon and green transformation. As a vital industry of China's economic development, logistics industry is a "large carbon emissions industry", so it should make efforts to respond to the call of "double carbon". The comprehensive modal emissions modeling (CMEM) for cold chain logistics distribution is introduced in this study, along with the calculation method for refrigerating and distributing carbon emissions during the cold chain vehicle distribution process. A mathematical model for distribution path planning and a better ant colony solution method were developed with the goal of reducing overall carbon emissions. By contrasting the numerical experiments with the path planning under the time and cost objectives, the viability of the model and algorithm was confirmed. This study has a good theoretical explanation and practical guiding significance for the cold chain logistics industry to implement green transformation to assist the realization of dual carbon goals.

This paper makes a statistical analysis on the green development indicators of mining industry in recent ten years, such as production concentration, labor productivity, resource exploitation efficiency, beneficiation level and comprehensive utilization efficiency of mine waste. The results show that the overall level of green development of my country's mining industry has reached a historical high, which has made contributions to the overall improvement of resource utilization efficiency and the green and low-carbon transformation of mining industry. In the face of many adverse factors, such as increasingly difficult technical and economic conditions of resources, tightening contradiction between supply and demand, increasing pressure on ecological environment and sustained high degree of external dependence, this paper puts forward countermeasures and suggestions for the development of green mining in

The purpose of this paper is to use the methods of big data analysis algorithms and questionnaire surveys to analyse the influence of sustainability education on garbage classification and recycling behavior. In sustainability education, cognitions on garbage classification and recycling policy of the local government (CGCRP), cognitions on the content of sustainable education (CCSE), cognitions on the advantages of sustainable education (CASE), cognitions on the restrictions of sustainable education (CRSE), cognitions on the mediums of sustainable education (CMSE), were studied. The frequency of garbage sorting and the weight of garbage were studied in the garbage sorting and recycling behavior. How the frequency of weekly garbage sorting is positively related to the cognitions on garbage classification and recycling policy of the local government (CGCRP), cognitions on the content of sustainable education (CCSE), cognitions on the advantages of sustainable education (CASE), and the cognitions on the mediums of sustainable education (CMSE), how to be negatively correlated with cognitions on the restrictions of sustainable education (CRSE). How the weight of recyclable waste produced per week is negatively related to the cognitions on garbage classification and recycling policy of the local government (CGCRP), cognitions on the content of sustainable education (CCSE), cognitions on the advantages of sustainable education (CASE), cognitions on the mediums of sustainable education (CMSE), how to be positively correlated with cognitions on the restrictions of sustainable education (CRSE). cognitions on the advantages of sustainable education (CASE) significantly affects weekly waste sorting time. The necessity of educating children about waste separation from an early age significantly affects the weight of recyclable waste produced each week.

This paper takes IFDI and OFDI as a whole through the coupling function to calculate the coordinated development level of two-way FDI. Based on the data from 2003 to 2019, a spatial Dubin model was constructed, and then a mediating effect model was added to further analysis to explore the impress of harmonious development of two-way FDI on China's carbon intensity. The results show that the harmonious development of two-way FDI inhibits the regional carbon intensity, and shows a reverse spatial spillover impress on the carbon intensity of surrounding provinces, especially the indirect effect caused by spatial and geographical factors. Further research finds that the overall level of local innovation can reinforce the inhibitory influence of FDI on carbon emission intensity, but in geographic space, it can increase the carbon emission intensity of surrounding provinces.

The carbon trading policy is a product of the combination of government power and market power in order to achieve my country's "carbon peak" and "carbon neutrality" as an important emission reduction tool for our party in combination with my country's actual situation. Based on the spatial Tobin double difference and other methods, this paper analyzes the emission reduction effect with the data since the implementation of my country's carbon trading policy from 2003 to 2019 and analyzes its transmission mechanism. The study found that the carbon trading policy can significantly reduce the carbon emission intensity of the pilot area, and the operation status of the carbon market can also significantly reduce the carbon emission intensity of the pilot area. The government can adjust the operation status of the carbon market to improve the regional emission reduction effect. The spatial interaction term also shows that the carbon trading policy has a positive spillover effect on the surrounding areas. The mediation effect analysis shows that the carbon trading policy mainly promotes the reduction of regional carbon emission intensity through technological innovation and industrial structure optimization. In the heterogeneity analysis, carbon trading policies have different effects on the eastern, central and western regions, so carbon trading policies should be implemented according to local conditions.

In July of 2021, electricity industry became the first to be included in the national carbon market, with more than two thousand emitters. As electricity industry is the transaction main body of carbon trade market, scientifically examining the carbon emission efficiency of electricity industry and discussing whether the implementation of carbon trading market has positive effects on carbon emission efficiency provides realistic value for low-carbon development and helps to achieve dual-carbon target. This article by using three-stage DEA model based on input-output production function idea, evaluated and ranked the carbon emission efficiency of electricity industry before and after the carbon trading market is established. The result showed that: 1. Most of the pilot cities have remained elevated or unchanged after the establishment of the carbon emissions trading market. Only Guangdong is at the forefront of production, and other provinces have room for improvement in terms of technical efficiency and scale efficiency. 2. China's carbon emission efficiency level has certain shortcomings in both the technical level and the scale level, and local government should emphasize on the internal management control. And by convergence tests, the result indicates that there is convergence in carbon emission, before the establishment of carbon trading market, but no convergence after establishing the trading market. There is no absolute β convergence. And conditional β convergence exists before the carbon trading market is built, while no conditional β convergence after establishing the trading market. Carbon emissions trading volume is insignificant related with convergence. This paper draw suggestions that government should keep improving the nation carbon trading markets, improve the internal management of carbon emission, adjust and narrow regional emission gaps and continuously optimize and improve the regional industrial structure.

In order to improve the green development level of ports, the environmental efficiency of coastal ports is measured. This paper improves the port environmental efficiency evaluation index system, uses the super-efficiency SBM model considering undesired output to evaluate the environmental efficiency of 14 coastal ports in China from 2012 to 2020, and proposes improvement directions and paths according to the results. The research results show that the overall environmental efficiency of coastal ports is good, with an average value of 0.7847. According to the slack variable results of inefficient ports in 2019, the main reasons for port environmental inefficiency are low resource utilization and insufficient throughput. Ports should optimize resource allocation, deepen energy conservation and emission reduction work, and achieve green and sustainable development.

Construction activities consume a lot of natural resources and energy, and carbon emissions are huge. Under the carbon-neutral strategy, green building is the inevitable choice in the future and the premise of realizing the sustainable development of construction industry. Based on this, this paper expounds the significance of green building to the sustainable development of construction industry from the angle of economy, environmental protection, health and comfort, combined with the advanced technology and construction experience at home and abroad, this paper analyzes on the present situation and characteristics of the development of the green building, and advances some principles and countermeasures for the sustainable development of the green building.

As the drought becomes more and more serious, the distribution of general water and hydropower deserves more and more attention. We establish a multi-objective programming model based on the relationship between supply and demand to manage water usage and electricity generation at the Glen Canyon and Hoover dams to address these competing interests. Finally, the distribution of regional water rights is CA (42%), CO (24%), AZ (23%), NM (7%), WY (5%) respectively. The suitable allocation of water to agriculture, industry and residences is 7.05%, 66.56%, 26.39%. In addition, the model is solved according to sufficient and insufficient conditions. In the case of sufficient conditions, the time required to meet the total daily water demand of Lake Powell is 17.848 hours, the operation period is 221.22 days, and the water delivery to Mexico is 3.38maf. The time is 14.375 hours and the delivery of water to Mexico 1.354maf.

The systematic statistical analysis of the basic causes is lacking in risk assessment of petrochemical port area. Based on the analyses sixty-seven tank safety accident cases, this pater summarizes the regulations for the formation and development of accidents. Targeted management systems are established, and then Tree Shape Logic Model is created.

A UV light activated SnO₂ thin film nitrogen dioxide sensor was fabricated by DC sputtering and oxidation. It can be directly placed in the air to detect the concentration of NO₂ at RT, with a detection limit of 5 ppb. Experiments show that the sensor has good selectivity and stability. SEM, XRD, and TEM characterization indicate that the sample is mainly composed of tetragonal rutile phase SnO₂. The surface presents a rough and porous granular structure, which is suitable for gas adsorption. The effect of operating temperature on NO₂ sensing of SnO₂ thin film gas sensor was systematically investigated. Therefore, the fabricated SnO₂ thin film NO₂ sensor has the promise to greatly reduce power consumption and can be used in a wider range of fields because of its characteristic that it can work normally at RT.

In order to achieve flexible, accurate, real-time and all-round monitoring of enclosed environmental gases, a portable space gas environment real-time monitor based on STM32 is designed. The monitor can monitor the space environment in real time and upload its environmental parameters to the cloud for remote viewing and control. It will send an early warning signal to the user when the monitored parameters are over the threshold value.

With the development of robot technology, many tedious and dangerous manual operations can be gradually replaced by robots, such as the inspection task of warehouse. This paper designs a four-wheel inspection robot which can well complete the line patrol, obstacle avoidance and inspection. It is equipped with sensors and webcams to get environmental parameters and on-site monitoring video. Through the remote communication between the lower machine and the upper computer, the staff can use the robot to complete the inspection task efficiently at the remote monitoring station. The design is divided into mechanical system, measurement and control system and software system

In order to solve the problems of low accuracy and low labor efficiency in garbage classification, an intelligent classification trash bin equipped with robot arm and 110-degree wide-angle camera is designed. A fast identification and positioning algorithm based on deep learning is proposed. The PASCAL VOC 2007 dataset is applied, which consists of 600 images containing 4000 different types of garbage in different situations. 20% of the images is randomly selected as the validation set, and the remaining 80% as the training set. The dataset is trained using the YOLOv5 model. After training, the model is tested on the garbage can system, automatically identification and classification the type of garbage is achieved and the robotic arm realizes the automatic positioning, grabbing and sorting. The experimental test results show that the error of the positioning algorithm is less than 0.8 mm, the fastest recognition speed is 2.6ms/piece, and the recognition accuracy can be maintained above 90% in the experimental environment, indicating that the algorithm has good accuracy and stability.

A novel adsorbent silver chloride loaded the activated carbon (AgCl/C) was prepared by a simple one-step method. SEM and XRD were applied to characterize the adsorbent. The thiocyanate adsorption experiments were carried out and the removal efficiency of thiocyanate was calculated and compared for different materials. The results show that the removal efficiency for AgCl/C adsorbent can achieve more than 98% in the temperature range of 20-30 ℃ and at the pH range of two to 12. The adsorptive mechanism of AgCl/C to the thiocyanate removal was inferred by the comparison of FTIR and XRD spectra for AgCl/C before and after adsorption.

As the environmental protection policies become increasingly strict, hazardous waste disposal is a noteworthy issue for power grid companies to achieve clean production. Based on the radio frequency identification devices (RFID) and internet of things (IoT) technology, a virtual warehouse theory, and informatization management system was introduced in this article, which consists of waste identification and tracking, full-chain of IoT, trade matching, production forecast, and visual display. This study offers a new thought for grid companies to develop other management methods to promote environmental protection and management works.

Diethyl phthalate (DEP) is a class of phthalates. As a widely used plasticizer, DEP has been extensively detected in different environmental systems, which would affect the reproduction of living organisms. In this study, both kinetic characteristics and influencing factors of DEP degradation by Fe²⁺/S₂O₈²⁻ system were studied. The results showed that the initial pH value, S₂O₈²⁻, Fe²⁺, DEP had effects on degradation efficiency of DEP. When the pH value was 3.0, the concentration of DEP was 50 μmol/L, the concentration of Fe²⁺ was 100 μmol/L and the concentration of S₂O₈²⁻ was 500 μmol/L, the degradation efficiency of DEP was 98%. Increasing the concentrations of Fe²⁺ and S₂O₈²⁻ were beneficial to the removal of target chemicals. The Behnajady-Modirshahla-Ghanbery (BMG) kinetic model were fit to describe the Fe²⁺/S₂O₈²⁻ method for low-concentration DEP removal. The 1/m in BMG kinetic model had a good correlation with the initial concentrations of Fe²⁺, DEP, S₂O₈²⁻ and pH. As far as we know, this was the first report of BMG kinetic model for ferrous ion-activated persulfate degradation of Phthalates.

This paper analyzes the solid waste management methods in the main project from three aspects: formwork engineering wood waste management, steel scrap management of steel reinforcement engineering, and concrete waste management of concrete engineering, which reduces the waste of resources, realizes the original intention of green construction, and provides reference for the recycling of construction waste.

In this study, a green water conservancy evaluation indicator system for water reservoir projects was constructed, to address non-systematic eco-environmental planning and design of water reservoir basins and eco-environment-economy- social benefit non-equilibrium. Green water conservancy technology indicator systems of four typical water reservoir projects (Kizil reservoir, Wushishui reservoir, Mengjin reservoir, and 500 reservoir) in Xinjiang, China were evaluated by analytic hierarchy process-entropy weight method and fuzzy mathematic method after optimization of 11 typical indicators selected in aspects of eco-environmental benefit, economic benefit, and social benefit and setting of their weights. Two mountainous water reservoirs, i.e., Kizil reservoir and Wushishui reservoir, were rated as green water conservancy level 2, Mengjin reservoir was rated as green water conservancy level 3, and 500 reservoir was rated as green water conservancy level 1. The results of this study provide a directional suggestion for carrying forward green, energy-efficient, and environmentally friendly water reservoir projects.

At the UN General Assembly in 2020, China put forward the goals of "Carbon Peak" and "Carbon Neutralization", in which the carbon emission of construction industry is huge and the problem is prominent. Plants are the most ecological and simplest way of carbon sequestration, and there are various forms of building greening. This paper summarizes the existing research results of building greening carbon sequestration, and studies the carbon sequestration capacity of anew form of building greening–Green Window System (GWS). By comparing the changes of CO₂ concentration between the installed GWS and ordinary indoor plants, it is found that plants with GWS obtain more solar radiation and its carbon sequestration ability is better than ordinary indoor plants.

The stator of wind power generation system is made by bonding large magnets and silicon steel sheet. In order to meet the requirements of wind power generation system, the bonding strength characteristics of large magnets group need to be tested before delivery. Therefore, a test device that can test the bonding strength of large magnets should be designed according to the shape characteristics of large magnets. Using the method of mathematical approximation in the finite element analysis to analyze and simulate the force of the designed test device, according to the obtained displacement and stress distribution, the design scheme is optimized. The maximum shear force and corresponding displacement of magnets can be obtained through experiments of the optimized test device, which can be tested in batches before the production of large magnets group.

Taking standard floor of high-rise office buildings as a research object in five cities of northern coastal region, Lianyungang, Qingdao, Yantai, Tianjin and Dalian included, model simulation and performance calculation are carried out with the help of Ladybug + Honeybee (L + H) platform. Principal component analysis (PCA) is used to solve the multicollinearity problem that 15 design variables including a building’s body (B, DR, FH, C and RE), window form (WWR, WH, SH, WHD and WVD) and envelope property (K, SHGC, VT, EW_R and F_R) were reduced to 12 and divided into four principal components (PCs), namely PC1 (buildings’ appearance), PC2 (window position), PC3 (window property) and PC4 (exterior-wall property), and then weights of PC1~PC4 were obtained by weight analysis to be 0.41, 0.268, 0.188 and 0.134 respectively, and the principal component linear evaluation function was proposed as Q = 0.41 PC1 + 0.268 PC2 + 0.188 PC3 + 0.134 PC4. On the other hand, with the help of genetic algorithm (GA), buildings’ energy consumption (BEC), thermal discomfort (PPD, Predicted Percentage Dissatisfied) and natural daylighting (sDA, Spatial Daylight Autonomy) were coupled to optimize standard floor shapes to find out excellent solutions. In summary, the paper proposes a performance optimization design process of high-rise office buildings’ standard floor.

A computational fluid dynamics model of a 660 MW down-fired boiler with multiple layers of secondary air has been developed. The plausibility of CFD model has been determined by performing a grid independence test and demonstrated by comparing the temperatures of the furnaces. in simulation and experiment. The validated CFD model was used to investigate the effect of different downdip angles of SA(F) on the coal combustion performance and NO_x emission characteristics at full load. The result shows that as the downdip angle of SA(F) rises from0° to 60°, then traveling distance of primary air/fuel in the lower furnace is significantly increased. The peak temperature occurs in the burnout zone, violating the initial design concept. When the downdip angle of SA(F) is set below45°, most of the air/fuel cannot cross the secondary air which is burned by the mixing intensity of the upward flowing pulverized coal and secondary air. In contrast, for SA(F) downdip angle of greater than 30°, primary air/fuel can penetrate the secondary air to reach the hopper, where combustion is controlled by the mixing intensity of the pulverized coal and secondary air, forming recirculation zones at the hopper. Considering the carbon content of fly ash and NO_x emission at the furnace outlet, the downdip angle of SA(F) is preferable to 15°.

In the development of information technology innovation, in order to further promote green building landscape effect of space environment design, scientific research and academic way of analysis of image processing to extract the internal environmental characteristics, and based on visual information processing technology to build the corresponding model structure diagrams, such not only can quickly identify the artistic features of the space environment, can also improve the design of the image. In this paper, we study the clear objectives on the basis of optimization theory and genetic algorithm, according to the image of green landscape space environment design, using the spatial characteristics of block area and matching module distributed test, combined with similarity matching, information fusion model of information fusion and module to obtain fuzzy characteristics of the space environment design image, Finally, the quality is evaluated by interactive genetic algorithm. The experimental results show that the optimization design effect of green building landscape space environment based on genetic algorithm is better, and the accuracy of image recognition is higher, so it has a positive impact on the innovation of modern urban architecture.

To reveal the characteristics of pyrolytic oil production from the thermal cracking of tobacco stem waste at different temperatures and oxygen concentrations, experimental studies of tobacco stem thermal cracking at 300-800°C and oxygen concentrations of 0-8% were carried out using a fixed-bed reactor, and the pyrolytic oil composition was analyzed by the gas chromatography-mass spectrometry (GC-MS) and the ultraviolet fluorescence spectroscopy (UV-F). The results showed that: 1. thermal cracking of tobacco stem could produce about 23.25-39.50 wt% of pyrolytic oil, and the oil yield reached the highest at 500°C; 2. increasing oxygen concentration could promote the oxidative consumption of volatiles, leading to the decrease of pyrolytic oil yield; 3. nicotine yield reached the highest value at 500°C when oxygen concentration was 0% and 4%, 7.0 mg and 9.5 mg (per g of tobacco), respectively. When the oxygen concentration was 8%, the nicotine yield reached the highest value of 7.8 mg (per g of tobacco) at 400°C. 4. under an inert atmosphere, high temperature inhibited the production of acids, ketones, aldehydes, alcohols, and heterocyclic substances and promoted the production of phenols, while oxidizing atmosphere helped to produce phenols, heterocyclic substances, and aromatic substances. 5. High temperature and oxidizing atmosphere significantly promoted the production of macrocyclic aromatic compounds. The results of this paper clarify the effects of reaction temperature and oxygen concentration on the generation characteristics of pyrolytic oil in the thermal cracking process of tobacco stem and provide theoretical guidance for the pyrolysis utilization of tobacco stem waste